Automobile-radiator



G IL.. LAKE, AUTOMOBILERADIATOR. APPLICATION FILED Inn "I5, 1920.

Patented Sept. 13, 1921.

.of the casing UNITED STATES PATENT OFFICE.

anchor. L. LAKE, or NEW MARKET, IOWA, Assrcmon or ONE-HALF T0 names. r.

EIGHMY, or NEW manxn'r, IOWA.

AUTOMOBILE- RADIATOR.

1 ,aoo, 794.

Application filed July 15,

To all whom it may concern:

Be it k nown that I, Gnonen L. LAKE, a citizen of'the United States,resident of New Market, in the county of Taylor and State of Iowa, havemade a certain new and useful Invention in.Automobile-Radiators5 and Ideclare the following to be a full, clear, and exact description of thesame, such as will enable others skilled in. the art to which itappertains to make and use the invention, reference being bad to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

F igure" 1. is a front view of the invention.

Fig. 2f 1s a section.on the line 2-2, Fig. 1, molar} d and partly brokenaway.

Fig. I is a detail cross sectional 'view of several of the radiatortubes.

The invention has relation to radiators for the explosive engines ofmotor vehicles, having for an ob'ectto provide improved radiator tubesadapted to expand under pressure and thereby resist burstin to increasethe water capacity of the radiator; to arrange the radiator tubes insuch manner as to lncrease the circulation of the air rela tive to eachtube and thereby facilitate the cooling of the water contents of thetubes; and to provide the radiator casing with removable front and backplates, and the radiator tubes with longitudinal scams or joints facingforwardly and rearwardiy and readily accessible for repairing in case ofbursting.

The invention consists in the novel construction and combinations ofparts, as here inafter set forth.

In the accompanying drawings, illustrating the invention, the numeral 2-designates the hollow top of the radiator casing; 3 the hollow bottomthereof, and 4, 4 the up;

right series of tubes connecting the top and bottom, the frame of thecasing comprising also sides 5, 5, connecting top and )ottom thereof,and intermediate horizontal partitions 6, 6, being used to assist inmaintann ing the tubes in proper relation.

The front of the casing of the radiator is provided with a recess 7,wherein. fits a re movable front plate 8,- having the usual openworhformation, and the rear or back is also provided with a recess or seat9, wherein fits a removable back plate 10, of openwork formation,horizontal bolts Specification of Letters Patent; Pate Sept 1920. SerialNo. 396,394.

11 engaging apertures 12 of the sides of the raising and having each oneend threaded at l3 into apertures of the removable front, 7 and theother end engaging apertures it of the removable back and threaded forenga ement of nuts 15.

"he radiator tubes are arranged in iii-- clined series 16, each serieshaving a central. bend" 16 therein, whereby it is divided, into twowings or branches 1.7, 17, ungularly die posed, and each series of tubesis coni 'iosed of members arranged close together. "lhe series of tubes,bent or bowed as stated, are spaced apart by bowed intervals 18consider" ably wider than the spaces 19 separating the members of eachseries. As a result, the air currents passing through the radiator not[iii only have more direct impingement upon the tubes, but the passageof the air currents in straight oaths through. the radiator cue ing isguart ed against to a maximum tent.

Each of the radiator ,tnbes is made of sheet metal, bent into form andprovi with a longitudinal seam or joint 20, whici'i. in the case of themembers of the wing or branch of the bent series nearest the remov ablefront of the radiator casing is arranged to face said front, and in thecase of the wing or branch of the series nearest the re-- movable backof said casing is arranged to face said back, whereby, should a breal develop in any of the tubes, it will be readily accessible for repairs,upon removing the front or back of the casing, as may be needed.

Each of the radiator tubes is made in squared or quadrangular form, witha corrugation or groove 21 in each side, the metal. of said corrugationor groove being ea tllie'l ble under pressure, and thereby resiemur;bursting.

I claim e .1. An automobile radiator, hm plate, a rear plate, uprightradiate arranged in inclined seri each ing a central bend. and:ii'ignlarly d branches, and a. hollow top and. a bottom havingcommunteat-ion with lid tubes, side frame pieces connectng said "top andsaid bottom, said tubes being or sheet 3.

El ti plate, a rem plate, upright tubes arranged in inclined series,each series haviu" a, centml bend and angular iy disposed branches, andn hoilow top and a hollow bottom having com'nnmicst-ion with said tubes,side frame pieces connecting said top and said bottom, said tubes beingof quadrangular form provided with h. ,gitudinally grooved sidesexpa-nsible under pressure, the tubes being .of sheetimeml and lmvinglongitudimew e4:

nal joints l accessible from the from and rear of the 131111121201: uponremovuf of" Him front and of i he rear plum In testxmony whereof Iufii); my :31 gnnmru 1n presence of two wltnessos.

GEORGE L. LAKE.

'itnesses:

M. F. 11mm, W. L. Enemies.

